/Engine/Source/Runtime/ApplicationCore/Public/GenericPlatform/GenericApplicationMessageHandler.h
virtual bool OnWindowAction ( const [TSharedRef](API\Runtime\Core\Templates\TSharedRef)< [FGenericWindow](API\Runtime\ApplicationCore\GenericPlatform\FGenericWindow) > & Window, const [EWindowAction::Type](API\Runtime\ApplicationCore\GenericPlatform\EWindowAction__Type) InActionType )